Tramper for cotton-presses.



N. B. HENRY.

- TRAMPER FOR COTTON PRESSES.

APPLICATION men NOV. 27, 1915.

Patented J ah. 16, 1917.

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WITNESS.

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N. B. HENRY.

TRAMPER FOR COTTON PRESSES.

- APPLICATION ElLED NOV. 27,1915. 1,212,637.

Patented- Jan. 16, 19172 2 T a E M 2 a w ww 4 3 m a w E H s 3 I N VE IVTOR V M B. Henry A 70mm mimom LITNQ. wuunvcmu. n c

APPLICATION FILED NOV. 27, I915- Patented Jan. 16, 1917.

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WITNESS. l/VI/E/VTOR NBaHenrg [fl/l4 '8) no: "cums PEYFRS m, PHOMLITHQ,WAsmNam/v, 11'8"] UNITED STATES PATENT oric NELsoN B. HEN Y, or DALLAS,TEXAS, ASSIGNOR TO THE MURRAY COMPANY, or DALLAS, TEXAS, A ooRroRA'rIoNor TEXAS.

TRAMPER FOR COTTON-PRESSES.

To all whom it may concern 7 Be it known that I, NELsoN B, HENRY, acitizen of the United States, residing'at Dallas, in the county ofDallas and State of Texas, have invented certain new'and usefulImprovements in Trampersfor Cotton- Presses, of which the following isaspecification. '7

My invention has relation to an improvement in trampers for cottonpresses and in such connection it relates more particularly to theconstruction and arrangement of the mechanism for operating the tramperfoot. In devices of this kind it has been almost universally the customto adapt the operating mechanism for the tramperto the motive powergenerally used, to wit, steam. There has not, to the best of myknowledge, been devised an operating mechanism for trampers of simpleconstruction capable of use with any motive power whether steam, gas orgasolene engine or electric motor. A The provision of means capable ofoperating the presser or tramper foot, said means capable of beingoperated'from any source of power constitutes one of'the objects of mypresent invention. In devices of this kind the mechanism for operatingthe tramper should be self controlling in that the distance traveled inthe elevation or lowering of the tramper foot is automatically limitedby the operatingmechanismitself. Further, while the operating mechanismis constantly under the control of the attendant it is desirable thatthe operating mechanism shall automatically correct any mistake of theoperator due to his negligence or carelessness in his manipulation ofthe mechanism.

The provision of means for automatically limiting the stroke of thetramper foot as well as the provision of means whereby in case ofcarelessness or negligence the operating mechanism be not properlyoperated, said mechanism will automatically correct the mistake,constitute further objects of myinvention.

The nature and scope of my invention will be more fully understood fromthe following description taken in connection with the accompanyingdrawings forming part here of, in which,

Figure 1, 1s a front elevational view of a tramper for cotton pressesembodying the I Specification of Letters Patent Patented J an. 16, 1917.Application filed November 27, 1915. Serial No. 63,712. I

main featuresof my invention; Fig. 2 is a front 'elevationalview,enlarged, of the operating mechanism for the tramper; Fig. 3, is a sideelevational View of Fig. 2; Fig. 4:, is a transverse, vertical,sectional view taken on the line of Fig. 3; Fig. 5, is a cross sectionalview taken on line 5 5 of Fig. 3; and Fig. 6, is a detail view insection of the drive mechanism. v

Referring to the drawings, 1 represents the tramper foot whichis'secured to and carried bythe lower end of-a vertically arranged frame2. a In the preferred construction the frame 2 consists of two metallicbeams which slide up and down in guides 3, projectingfrom brackets 41;,supported by a platform or floor 5, which platform or floor constitutesthe support for the driving mechanism for the apparatus. At either endof the frame 2 is a bearing 6 and 7, the bearing 6 supporting asprocket'S and the bearing7 supporting the sprocket 9. The two sprockets8 and 9 arearranged preferably between the two beams constituting theframe 2.

In the stationary frame-work of which brackets at constitute a part ismounted the shaft 10 to which the main driving gear 11 is secured. Theshaft 10 also carries a sprocket-12. Below the gear 11 in the. u

framework is supported an idler sprocket 13. To the right side of theframework is secured a 14:- having at either end a tensioning or take-updevice 15 of any desired constructions A chain 16 is secured at onerection, say clockwise, -(Fig. 4)" the lower part of the chain 16 iswound up and the upper part of chain unwound to thereby raise the frame2 and presser foot 1. However, when the gear 11 is revolved in the re-,verse direction the upper part of chain 16 is wound up'and the lowerpart unwound to thereby depress frame 2 and tramper foot 1.

The rotation of the gear 11 in either direction is accomplished asfollows: In mesh with gear 11 isa pinion 17 keyed or other" wise securedto a shaft 18. acent to pin- I mediate of the two Plllleys 21 and 22 isa third or idler pulley 23- running idle'on shaft 18. When shaftl-S isdriven byp-its pulley 22 the pinion 17 is rotated to rotate theggear'llin",0I1e..;dir.e.cti0n...than. the

drivingjpulley 21-; is: driven as 'hereinafter described the pinion 19'.is; driven. .Th1s pinion 19"me.shes" w;ith;apinion 2 1- Wh1Cl1'.1S

in gear with the main gear. 11 and-servesto turn the said'gear 1n a'directionopposite to that in which pinion 17 turns said gear. The maingear 11 still being in mesh with pinion 17, the shaft is rotatedinreverse direction.

A belt 30 operated by belt-shifter 31 is 3 adapted to be shifted fromthe intermediate operator.

pulley 23 to pulley'21 or; pulley 22 when the lever 32 of the beltshifter 31 is either pushed inward or' pulled outward by the To preventthe shaft 18 from continuingto rotate after the belthas been shifted tothe idle pulley 23 to stop the operation of the machine, .there issecured to; the end of the shaft a brake disk or pulley inclosed betweenthe two pivoted brake arms34c, the free ends 35 of which are con.-nested by a stout spring 36. The belt shifter lever is fastenedat. itsupper end to a rock shaft-37- which traverses both brake ar'ms 34e-andis provided between said-arms with the cam projections 38 operating uponthe free ends 35 of said brake arms 34. Thus if lever 32 is pulled. outor pushed inward to. shift belt 30 to pulley22 or 21, the

- 1 rock-shaft37 is turnedso that its cams 38 separate the arms 34:against tension of spring 36 but when the lever is in position to shiftbelt to idle pulley 23 then the rockshaft 37 is turned so that its cams38 permit the arms 34 to tightly clamp the brake pulley 33 under tensionof said spring 36, and thus stop the rotation of shaft 18 instantly.

In the operation of the machine as heretofore described, the operatorstanding in front of the machine manipulates the lever 32 as required.If for any reason he releases the lever, it immediately assumes aposition in which belt shifter 31 brings the belt 30 j to the idlepulley 23, being thrown to said stop the machine or if for any reasonthe brake fails tostop the movement of frame,

to shift the belt to the other driving pulley .to reverse the movementof frame and tramper foot. To accomplish this between 1 the; beamsconstituting the frame 2 at the top and bottom thereof, are secured thetwo cam plates or frames/10 and 11. The upper of .these plates :40hasfacamsurface 42 'designe'das the frame .2. descends to throw a lug-501011 the belt shifter link. 51' first. inwardto: bring .the belt shifteropposite .the idleipulley 23 andthen. still farther: inward, as theframe 2 descends, to bring the belt shifter opposite pulley 21 toreverse the movement of gear 11 and frame 2. The cam surface 43 of lowerplate 41 is arranged oppositely. to the surface 42 of plate 40 beingdesigned as the frame 2 ascends to its extreme upward .position, tothrow lugv 50 and link 51 first outward to bring the belt frompulley. 21to idle pulley 23 and then still'farther outward, if the frame 2continues tomove, to reverse the movement of gear 11 and frame 2.

Having thus. described the nature and objects of my invention, what Iclaim as new and desire to secure by Letters Patent 1s,-

1. In a tramper .for cotton presses, a tramper foot, a frame'carrying.said foot, a fixed framework wherein said frame .is adapted'to'reciprocate, a chain arranged on said frame and having its endssecured to the fixed framework combined-with means for winding andunwinding said chain on said frame to thereby reciprocate said frame inthe fixed framework.-

2. In a device of the character described, a frame, a sprocket arrangedat the top, and a' sprocket arranged at the base of said frame, anintermediate sprocket, a chain carried over the top sprocket, under thebottom sprocket and over the intermediate sprocket, a fixed framework inwhich the frame is arranged to reciprocate, a means for securing theends of the chain to said fixed framework and a means for winding andunwinding the chain on the frame to thereby elevate and depress saidframe in the fixed frame-work.

3. In a device of the character described, a fixed frame-work, a framecarrying the tramper foot and arranged to reciprocate in the frame-work,a chain arranged to reciprocate the frame, said chain having its endssecured to the fixed frame-work, a gear controlling the operation of thechain and a driving mechanism arranged to. drive the gear alternately inreverse directions.

41.,In a device ofthe character described,

a tramper foot, a frame carrying the tramper foot, a fixed frame Workwherein said frame is adapted to reciprocate, a chain arranged on saidframe and having its ends secured to the fixed frame Work, a means forWinding and unwinding said chain on said frame to thereby reciprocatesaid frame in the fixed frame Work, in combination with means carried bysaid frame and adapted at the limit of either stroke of said frame tostop the 10 movement of said chain operating means.

In testimony whereof I have signed my name to this specification.

NELSON B. HENRY.

Uopies of this patent may be obtained for five cents each, by addressingthe Commissioner of ratents,

' Washington, D Q.

